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1. 发明公开

EP2896842A1 MAGNETIC BEARING 有权
标题翻译： MAGNETLAGER
公开(公告)号：EP2896842A1
公开(公告)日：2015-07-22
申请号：EP13837195.0
申请日：2013-08-26
申请人： Daikin Industries, Ltd.
发明人： IRINO, Yusuke , NAKAZAWA, Yuji
IPC分类号： F16C32/04 , F16C41/00
CPC分类号： F16C32/0461 , F16C32/048 , F16C32/0489 , F16C2360/44 , F16C2360/45
摘要： A magnetic bearing which would reduce a leakage magnetic flux to be generated between teeth is provided. A predetermined one of its teeth (24) is configured so that a pitch (P1) between the predetermined tooth (24) and one of two adjacent teeth (24) that are located on clockwise and counterclockwise sides thereof in the circumferential direction is broader than a pitch (P2) between the predetermined tooth (24) and the other tooth (24) and that a magnetic flux flows in the same radial direction through the predetermined tooth (24) and the tooth (24) spaced from the predetermined tooth (24) by the narrower pitch (P1) but flows in two different radial directions through the predetermined tooth (24) and the tooth (24) spaced from the predetermined tooth (24) by the broader pitch (P2).
摘要翻译：提供了一种能够减少在齿之间产生的漏磁通的磁轴承。其预定的一个齿（24）被构造成使得在周向方向上位于其顺时针和逆时针侧的预定齿（24）和两个相邻齿（24）中的一个之间的间距（P1）比在预定齿（24）和另一个齿（24）之间的间距（P2），并且磁通量通过预定的齿（24）和与预定齿（24）间隔开的齿（24）沿相同的径向流动），但是通过预定齿（24）和与预定齿（24）间隔较宽间距（P2）的齿（24）在两个不同的径向方向上流动。

2. 发明公开

EP4303440A1 ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATION DEVICE 审中-实审
公开(公告)号：EP4303440A1
公开(公告)日：2024-01-10
申请号：EP22781110.6
申请日：2022-03-30
申请人： Daikin Industries, Ltd.
发明人： SAKURAGI, Takuya , IRINO, Yusuke
IPC分类号： F04B39/00 , H02K3/16 , H02K7/09 , H02K7/14
摘要： An armature winding group includes a plurality of series winding sets (721u, 722u) including a plurality of armature windings (711u to 714u) of the same phase connected together in series. Each series winding set (721u, 722u) is connected in parallel with another one of the series winding sets (721u, 722u) of the same phase as that of the series winding set (721u, 722u).

3. 发明公开

EP3930176A1 ELECTRIC MOTOR SYSTEM 审中-实审转让
公开(公告)号：EP3930176A1
公开(公告)日：2021-12-29
申请号：EP20776424.2
申请日：2020-03-19
申请人： DAIKIN INDUSTRIES, LTD.
发明人： ONO, Takaaki , IRINO, Yusuke , HIBINO, Hiroshi
IPC分类号： H02P5/46 , F16C32/04 , H02K16/00 , H02P25/022 , H02P25/22 , H02P27/08
摘要： An electric motor system (2) includes a drive shaft (30) rotatable around an axis, a first electric motor (60) and a second electric motor (70) each configured to rotate the drive shaft (30), a first inverter (91) configured to supply power for generating a torque to the first electric motor (60), a second inverter (92) configured to supply power for generating a torque to the second electric motor (70), and a control unit (80) configured to control the first inverter (91) and the second inverter (92) and configured to be able to change a ratio between an output torque of the first electric motor (60) and an output torque of the second electric motor (70).

4. 发明公开

EP3687045A1 ELECTRIC MOTOR AND TURBO-COMPRESSOR 审中-实审转让
公开(公告)号：EP3687045A1
公开(公告)日：2020-07-29
申请号：EP18874918.8
申请日：2018-10-25
申请人： Daikin Industries, Ltd.
发明人： ONO, Takaaki , IRINO, Yusuke , TONARI, Tatsuya , NAKAZAWA, Yuji , AOTA, Keiji , SAKAWAKI, Atsushi
IPC分类号： H02K7/09 , F16C32/04 , H02K3/12 , H02K3/28 , H02K7/14
摘要： A support electric wire (60) is constituted by one or more conductive wires (61), is disposed so as to pass through a plurality of slots (53), and forms a winding portion that generates an electromagnetic force for supporting the rotor (30) in a non-contact manner by being energized. The drive electric wire (70) is constituted by one or more conductive wires (71), is disposed so as to pass through the plurality of slots (53), and forms a winding portion that generates an electromagnetic force for rotating the rotor (30) by being energized. The cross-sectional area per conductive wire (61) of the support electric wire (60) differs from the cross-sectional area per conductive wire (71) of the drive electric wire (70).

5. 发明授权

EP2896842B1 MAGNETIC BEARING 有权
公开(公告)号：EP2896842B1
公开(公告)日：2018-10-17
申请号：EP13837195.0
申请日：2013-08-26
申请人： Daikin Industries, Ltd.
发明人： IRINO, Yusuke , NAKAZAWA, Yuji
IPC分类号： F16C32/04
CPC分类号： F16C32/0461 , F16C32/048 , F16C32/0489 , F16C2360/44 , F16C2360/45
摘要： A magnetic bearing which would reduce a leakage magnetic flux to be generated between teeth is provided. A predetermined one of its teeth (24) is configured so that a pitch (P1) between the predetermined tooth (24) and one of two adjacent teeth (24) that are located on clockwise and counterclockwise sides thereof in the circumferential direction is broader than a pitch (P2) between the predetermined tooth (24) and the other tooth (24) and that a magnetic flux flows in the same radial direction through the predetermined tooth (24) and the tooth (24) spaced from the predetermined tooth (24) by the narrower pitch (P1) but flows in two different radial directions through the predetermined tooth (24) and the tooth (24) spaced from the predetermined tooth (24) by the broader pitch (P2).

6. 发明公开

EP4299931A8 ELECTRIC MOTOR SYSTEM, TURBO COMPRESSOR, AND REFRIGERATION DEVICE 审中-实审
公开(公告)号：EP4299931A8
公开(公告)日：2024-02-14
申请号：EP22775331.6
申请日：2022-03-16
申请人： Daikin Industries, Ltd.
发明人： IRINO, Yusuke , FU, Yuu , NAKAZAWA, Yuji
IPC分类号： F16C32/04 , H02K7/09 , H02K7/14 , F04D29/058
摘要： An electric motor system (101) includes a drive shaft (130) configured to rotationally drive a load (120); and a bearingless motor (170) and a radial magnetic bearing (180) arranged side by side in an axial direction of the drive shaft (130). A radial load on the drive shaft (130) is supported in a non-contact manner by the bearingless motor (170) and the radial magnetic bearing (180). A thrust magnetic bearing (150) is disposed between the bearingless motor (170) and the radial magnetic bearing (180).

7. 发明公开

EP3920378A1 ROTOR, AND ROTARY ELECTRIC MACHINE 审中-实审转让
公开(公告)号：EP3920378A1
公开(公告)日：2021-12-08
申请号：EP20779970.1
申请日：2020-03-25
申请人： DAIKIN INDUSTRIES, LTD.
发明人： IRINO, Yusuke , ONO, Takaaki , NAKAZAWA, Yuji , TONARI, Tatsuya , SUMITOMO, Hisato , TAKEMOTO, Masatsugu
IPC分类号： H02K1/27 , H02K21/16
摘要： At least one of a plurality of magnetic poles (36) includes a first magnetic pole (36). The first magnetic pole (36) is comprised of a plurality of permanent magnets (34) arranged in a circumferential direction. Each of straight lines parallel to magnetization directions of the permanent magnets (34) at both circumferential ends of the first magnetic pole (36) is inclined with respect to the magnet centerline (35) of the associated permanent magnet (34), and is inclined, compared to the magnet centerline (35), in a direction toward the magnetic pole centerline (37) of the first magnetic pole (36) as the straight line approaches from the center to a radially outer end of the associated permanent magnet (34). An angle formed between each of the straight lines parallel to the magnetization directions of the permanent magnets (34) at both circumferential ends of the first magnetic pole (36) and the magnet centerline (35) of the associated permanent magnet (34) is greater than 0° and less than 90°.

8. 发明公开

EP3579390A1 TURBO COMPRESSOR 审中-实审转让
公开(公告)号：EP3579390A1
公开(公告)日：2019-12-11
申请号：EP18798224.4
申请日：2018-05-08
申请人： Daikin Industries, Ltd.
发明人： NAKAZAWA, Yuji , SAKAWAKI, Atsushi , HIGASHI, Hirofumi , NOSE, Taiichi , ONO, Takaaki , IRINO, Yusuke
IPC分类号： H02K7/09 , F04D17/10 , F04D27/02 , F04D29/00 , F04D29/058 , F16C32/04 , H02K7/14 , H02P25/022
摘要： A drive support unit (160, 170, 180, 250, 260, 450, 460, 621, 640, 760, 770, 780, 782, 784, 787, 840, 850) of a turbo compressor (101, 210, 410, 601, 701, 812) includes at least one bearingless motor (160, 170, 250, 450, 640, 760, 770, 840, 850). The at least one bearingless motor includes a rotor-stator pair constituted by a rotor (161, 171, 251, 451, 641, 761, 771, 841, 851) and a stator (164, 174, 254, 454, 644, 762, 772, 844, 854), and is configured to rotationally drive a drive shaft (130, 240, 440, 605, 730, 831) and to support a radial load of the drive shaft (130, 240, 440, 605, 730, 831) in a contactless manner. Accordingly, it is possible to provide a turbo compressor to which a bearingless motor is applied.

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